Putting new pistons in the rig tonight and I'm curious how much oil to use for break in. AC says 100:1 in the manual and SPI recommends 50:1. It's a 1999 ZR600 Carb if that matters. Also, will it matter that I have Amsoil HP in the oil tank and only have Mobil 2xt synthetic for the gas tank?
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I don't know if it matters but, for break in on a four stroke you are supposed to avoid synthetic oil (too slippery) because the rings take a long time to seat. With power valve engines needing clean burning oil which is normally synthetic it may not be an issue.
Mixing oil should have no effect.
Mixing oil should have no effect.
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